package org.example.blog.controller;

import org.example.blog.model.Result;
import org.example.blog.model.UserInfo;
import org.example.blog.service.UserService;
import org.example.blog.utils.JwtUtils;
import org.example.blog.utils.SecurityUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import java.util.HashMap;
import java.util.Map;

@RequestMapping("/user")
@RestController
public class UserController {
    @Autowired
    private UserService userService;
    @RequestMapping("/login")
    public Result login(String userName, String password){
        //1.参数校验 2.密码校验 3.生成token并返回
        if(!StringUtils.hasLength(userName) || !StringUtils.hasLength(password)){
            return Result.fail("用户名或密码为空");
        }
        //获取数据库中的密码
        UserInfo userInfo = userService.queryByName(userName);
        if (userInfo == null || userInfo.getId()<0){
            return Result.fail("用户名不存在");
        }
        if(!SecurityUtil.verify(password,userInfo.getPassword())){
            return Result.fail("密码错误");
        }
        //生成token并返回
        Map<String, Object> claim = new HashMap<>();
        claim.put("id", userInfo.getId());
        claim.put("name", userInfo.getUserName());
        String token = JwtUtils.getToken(claim);
        return Result.success(token);
    }

    //获取登录用户的信息
    @RequestMapping("/getUserInfo")
    public UserInfo getUserInfo(HttpServletRequest request){
         String token = request.getHeader("user_token");
        Integer userId = JwtUtils.getUserIdFromToken(token);
        if (userId == null){
            return null;
        }
        return userService.queryById(userId);
    }
    //获取作者信息
    @RequestMapping("/getAuthorInfo")
    public UserInfo getAuthorInfo(Integer blogId){
        if (blogId == null && blogId <0){
            return null;
        }
       return userService.getAuthorInfo(blogId);
    }
}
